Semi-SWATH Small Ferry Lockheed Martin

Information Property of Lockheed Martin

Lockheed MartinSemi-SWATH Small Ferry


Evolution of the Tahoe Small Ferry

• Lockheed Martin has a long history of innovative ship design.– Four ferries for Alaska Marine Highway

System– Sea Shadow; an advanced stealth

demonstrator– Small Tactical Craft; a Small Waterplane Twin

Hull demonstrator for special operations• The Tahoe Small Ferry; a derivative of the

Small Tactical Craft

The Tahoe Small Ferry is a Semi-Swath design providing optimal mix of sea keeping for a smooth comfortable ride and hydrodynamic efficiency for speed at low fuel consumption.

Semi-SWATH Small Ferry


Tahoe Transportation District Semi-SWATH Small Ferry






Semi-SWATH Water Shuttle - Principal CharacteristicsTahoe Transportation District Small Ferry

Tahoe Transportation District Specifications STC Demonstrator TTD Semi-SWATH Small Ferry

Passenger Capacity 10 -20 12 ( as currently configured) 24Length 25' - 45' 40' ~53'Draft 24" 30" 33"

Operating Speed @ 80% MCR, knots 18+ 35+( @ 90% MCR)

21 - Preliminary based on Caterpillar C7 Acert @ 80%

MCR

Fuel Burn at Operating Speed, gph < 6

32 - Preliminary based on Caterpillar C7 Acert @ 21

ktsNautical Miles per gallon at operating speed

> 2.75 2 @ 30 kts0.7 - Preliminary based on Caterpillar C7 Acert @ 21

ktsRange, nmi 300 160 nmi. @ 30 kts 300Noise Level at Operating Speed, dBA 80 80

Propulsion

Single Diesel or Diesel-ElectriHybrid

Other Outdrive, shaft & Prop, pod or jet

c Twin Seatek 820 Plus(840 HP each)

Gearboxes ZF 305-2 with PTONAMJ Nomera 800.1

Twin diesels + waterjets.

Other requirements in accordance with TTD Specifications for Pilot Project Small Ferry Vessel


Lockheed Martin STC (Small Tactical Craft) - Overview


Lockheed Martin - STC Prototype Vessel






STC - Features and Benefits

Feature Description Benefit

Advanced Hull Form Semi-SWATH Hullform combines best features of Catamaran and SWATH hulls

- Superior Sea keeping and Maneuverability without Sacrificing Speed - Hull design provides stable smooth ride to aid crew comfort not discomfort (Which leads to crew fatigue and payload damage)- Superior towing capability

Rapid Re-Configurability Ability to quickly change mission packages Versatile “Pick-Up Truck” for Green/Brown Water Ops

Reconfigurable Mission Deck Space – 4,500 lb Capacity – Remove / Re-install, 30 Min.– Approx 18’L X 11.5’W

Operational flexibility supports multiple missions

Transportable The vessel is trailer-able using a commercial low-boy trailer or boat hauler.

The vessel can be moved between locations without special equipment and easily handled by standard marina travel-lift equipment.


STC - Modular Payload Design

Payload Attached

Maximum Payload CharacteristicsWeight Capacity: 4,500 lbDimensions: 216” L x 138” W Area: 207 Sq. Ft.

Flexible Rapid Mission Package Change-Out

Payload Removed

Single 10 Ft ISO ContainerLongitudinally on Centerline

Dual 10 Ft ISO Containers Athwart ship


Lockheed Martin - STC Seating/Demonstration Module


STC Towing Capability – Bollard Tow Force Measurement

Large Water jet Impeller Diameter Produces High Thrust


Semi-Swath Catamaran Hull

Length Overall 39.5 ft

Beam Overall 11.5 ft

Height 10.8 ft

Draft (Full Load) 2.5 ft

Lightship Displacement 17,450 lbs

Full Load Displacement 22,200 lbs

Diesel Engines Twin Seatek 820 Plus (840 HP each)

Gearboxes ZF 305-2Reversing gearbox to provide waterjet

backflushing (clear the intake)

Water jets NAMJ Nomera 800.1

Adjustable Trim +/- 13°

Ballast System (4) Independent seawater tanks

Power generation DC Alternators (80A each)

DC / AC Inverter 4KW (2)

Fire Suppression System

Fireboy 500 cu. ft. Halon HFC-227ea (1) in each engine compartment

Automatic engine shutdown system integrated into fire system

Electronics / Navigation

4KW Radome

VHF / AIS

Chart plotter / Sounder / GPS

Satellite Weather

Operational Sea State 4

Survivability Sea State 6

Cruising Speed 20 - 30 kts

Sprint Speed 35 kts

Power 1650 HP

Modular Payload 4500 lbs

Range 160 NM @ 30 kts

Fuel Capacity 320 Gallons

Fuel Consumption 2 Gal / NM @ 30 kts

Crew 2 - 3

Vessel Hull

Shipboard Systems

Vessel Performance

STC – Specifications Overview


Tahoe Transportation District Small Ferry based on proven performance of Lockheed Martin Small Tactical Craft (STC)



Documents

Semi-SWATH Small Ferry Lockheed Martin